Typewriter



N. LALLlE TYPEWRITER. APPLICATION FILED JUNE 26, i918- 2 SHEETS-SHEET 2.

wITN s SE5 1 INVEN'I'UR;

Patented Jan. 27, 1920.

nonimn'r LA'LLiE, or NANTES, FRANCE.

TYPEWRITER.

Specification of Letters Patent.

Patented Jan. 27, 1920'.

Application filed June 26, 1918. Serial No. 242,092.

To all whom it may concern:

- the Braille writing).

Be it known that I, NORBERT LALLIE, a'

citizen of the French Republic, residing at 12 Rue du Baccage, Nantes,Loire- Inf:

'rieure, France, have invented new and useful Improvements 1nTypewriters, of which the following is a specification.

My invention relates to typewriters for printing Braille characters oranalogous characters for the blind. Such machines sometimes have 6 keysto each letter which operate as many po nts or punches to produce arelief impression on the sheet.

The writing on such machines necessitates the simultaneous movement offrom 1 to 6 fingers for an impression of a single letter. Otherapparatus exist in which the depression of a single key produces theraised dots representing each letter.

The object of this invention consists in an improved and newconstruction of the latter kind of apparatus in which the knownframe-levers, or plates, are superposed and operated by a comb connectedwith the type keys, said frame-levers forming the direct actuatingelements of the points or punches, they being of uniform size andpivoted on separate pivots.

The machlne therefore comprises: (l) 6 movable points (1 point for eachin (2) As many superposed movable frames or rectangular plates aspoints. Each frame or plate oscillates on a separate axis and each pointis displaced at same time with the corresponding frame.

(3) Movable combs in equal number to the letters or signs to be printed,and serving to operate said frames or plates. Each of thesecombs isoperated by a type lever provided with a key carrying the letter or signto be impressed and distributes the necessary effort to the points toproduce the relief impression. These combs carry from 1 to 6 teethvandeach of the latter moves with the comb when the key is depressed, andpresses on a blade of the frame or plate corresponding 'to each of thepoints required.

The comb can be made so as to act by means of its teeth in upward ordownward direction .on the frames which move the points or punches.-

The diagrammatic figures of the annexed drawings show these differentapplications:

Figures 1 and 2 show a longitudinal secdownwardly on the frames and inconsequence move the points fixed thereto;

Fig. 3 shows in section a modification in which the frames are operatedby a lifting motion.

In these drawings of Figs. 1 and 2, 1 is the cover of the machine whichcarries a metal plece provided with recesses or cups 2 against which thepoints 3, fixed to the.

frames 4 articulated on an axis 5 between the side plates 6 of themachine, abut or press onto the pa Thekey 7 on oscillating around theshaft 9 fitted between the sides 6, actuates under pressure of thefinger, the comb 10. attached to the lever 8 and carrying the teeth 11,12 which depress the frames 4.. It operates, by the'pressure of onefinger, the second and fourth frames as will be seen from the drawings.

The comb 10 carries at its basea plunger moving in a recess and raisedby a spring a 13 fitted in the recess 14 of the base 15 of the machine.-

The cylinders 16, 17, 18 and the spring er fever 8 articulated and guide19, for the carriage guide the paper which passes out at 20. Thecarriage and its controlling mechanism are well known and need not bedescribed.

Inv the modification, the cylinders 16, 17

18 and the spring-guide 19 again serve as guide for the carriage and thepaper which passes to the opening 20 beneath the cups 2 which receivethe points 3 passing through the guides 21 of the cover of the machine.

The frames 4* in Fig. 3 are pivoted on separate pivots 5* mounted in thesides of the machine and have supporting rods or shafts 6* on which theyrepose.

The key 7 on lever 8 which is pivoted to and oscillates about the shaft9 actuates under the pressure of the finger, the comb 10 in engagementwith lever 8 and carrying the'teeth 11, 12 for lifting the frames 4*. Itactuates b the ressurc of one finger, the third and fth rames, as shownin the drawings.

The points 3 and the comb 10, moving freely in the sockets or recesses14 of the base 15 of the machine, areoperated, so as In the severalfigures, a single touch and a single lever have been shown instead of.

the 63 levers necessary for a complete keyboard, for the sake ofsimplicity.

I claim:

In a typewriter for Braille or analogous characters, superposed pivotedframes, operating keys and type-levers, a comb "con trolled by theselevers, teeth provided on said comb acting on said frames, and points,for producing the Braille characters, operated by the frames.

N. LALLIE.

